Siliceous ooze is a type of sediment found on the ocean floor, primarily composed of the microscopic remains of organisms like diatoms and radiolarians. These tiny creatures have silica-based shells, which accumulate over time, forming a soft, fine sediment. Siliceous ooze is typically found in areas with high biological productivity, where these organisms thrive. This sediment plays a crucial role in the marine ecosystem, as it contributes to the carbon cycle and provides habitat for various marine life. When siliceous ooze is buried and compacted over millions of years, it can eventually transform into sedimentary rock, such as chert.